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Finding the Fourth Proportional to 178,161.79, 267,255.16 and 71,545.74

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Solution

The fourth proportional to 178,161.79, 267,255.16 and 71,545.74 is: 107,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,161.79 : 267,255.16 = 71,545.74 : x
  2. Step 2: Convert to fraction form
    178,161.79/267,255.16 = 71,545.74/x
  3. Step 3: Cross multiply
    178,161.79x = 267,255.16 × 71,545.74
  4. Step 4: Simplify right side
    178,161.79x = 19,120,968,191.02
  5. Step 5: Solve for x
    x = 19,120,968,191.02/178,161.79
  6. Step 6: Final answer
    x = 107,323.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.